Starting mechanism for internal-combustion engines.



0. P. OSTERGREN.

STARTING HECHANISM FOR INTERNAL GOMBUSTION ENGINES.

unieuro! FILED 1111.1. 1911.

1502755295. 1 lPatented May 7,1912.

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WW1/tuna 0. P. OSTERGREN. STARTING vMBGMNI'SM PoR INTERNAL coMBUs'rIoN ENGINES. APPLIOATIOI FILED IARL7. 1911.

1,025,295.; Patented May 7, 1912.

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0.- P. OSTERGRBN. STARTING NEQHANIBM TON INTERNAL coMBUsTIoN ENGINES. APPLICATION FILED KAB. 7. 1911,

A1,025,295. l Patented May 7, 1912,

5 SHEETS-SHEET a.

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0. P. OSTERGREN. lSTARTING MEGHANISM FOR INTERNAL GOMBUSTION ENGINESIV APPLICATION FILED 11,111.71 1911.

1,025,295. 4 Patented May 7,1912.

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o. P. OSTERGRBN. STARTING MECHANISM FOR INTERNAL GOMBUSTION ENGINES.

` APPLICATION FILED HAR. 7, 1911. V V 1,025,295, Patented May 7, 1912.

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UniTnD STATES PiiTENT oscA'Br.,osTERG1iEN, or BROOKLYN, NEW Yonx, esteriore-BY minion. ND MESNE ASSIGNMENTS, 0F ONE-'HALF To .HARRY ms AAND ONE-'HALF To. YSAMIUEH s. MARLEY, BOTH on WILMINGTON. DELAWARE y stumme MECHAMSM ron IiiTiinNaL-coneiis'rroisr Specication of Letters raient.

Appiicauoniiiea nare-ii 7, 191i. serial in. '312,861

To all whom 'it may concern:

Y Be it known that I, 'OSCAR P. OSTERGREN, a-subject of the King of Sweden, residing at Brooklyn in tlie county'of Kings and State of New York, have invented certain new and useful Improvements lin Starting Mech# vanism for', 'Internal-Combustion Engines,

of which the following is a specification.

My invention relates to improvements in starting mechanism for internal combustion engines, thelobje'ct ofthe invention being to v`provide improved means for imparting initial'com'pression i'n the 'cylinder or cylinders, and" which' dispenses 'with the necessity of cranking, as' is vcustomarywith engines of thistype; ff

A' further-l ohiectf is to provide improved mechanismo this. character, which when.

movedinto operative position will turnthe gears ofpthejfenine to compel the 'initial compression, an "when the speed of the gears ,exceeds-'the speed imparted. thereto by the-'starting mechanism, said gears will force the. starting- .mechanism to its normal inoperative position. 1

A further Objectis to provide an improved starting'inechanisni which utilizes 1.2;. verseisection on the-line of Fig. 2.

fluid under pressure, and which preferably employs the exhaust from the engine .\l though other fluid may be employed as desired.

A further object is to provide a starting mechanism of this character which may he attached to engineswithbut slight modifi cation, and while it is particularly adaptedv foriiseinconnection withtlie engine set forthv inuny application executed on even date herewith, itis in no wise limited to that particular engine.

lVith these and other vobjects in 'iew,tlie invention consists in certainnovel features hereinafter describedAA andrf-pointed "out, in thefcla'ims.

jIn' the a'ccoiii'panying drawings: `Figi'ire 1,1fis-a view in'elevation illustratinguny iniandf.partly \in horizontal sections. -lig 3. is a viewin longitudinal section on lthe, line.

5, is a fragmentary view in elevation show! jiuesh 4with the largerl gear ing the startingmechanis'm inoperative pol l sition. Fig. 6, is a se'ctions'ilplaii view on an 5 5 enlarged scale illustrating the motor fused for starting. Fig. .7', is 'an enlarged viewf 'in' vertical section of the motorand vits support.

U mechanism is illustratedin-connect-ion with 4- 65'- my improved engine', in Which-al plurality- FTE of cylinders l'tpreferably four)`are*secured`l in parallelism and inf-rigidafrelationwith' each other by means ofncrank-casings 4, .L70

rods 8, and nuts 11, and' inajsaidscylinders pistons 19 are located,'and.farefconnectedb links-20 with crank-shftsll siipporte'd'i bearings ,1 5in the crank -casingsihr-On' these shafts 16, gears 38 arezlixed, andnieshfivith. 'is larger 'gears'lfton countershafts '13. i' 0u 4v71.15 these coiintershaft's-13, cams-34 are fixed for.v

operating .the-inlet and earliaust.-` valves .24

and Q5 respectively, through 1 the medium I,of pivoted arms 32,:ind stems 28, said valves-. v-c.

beino' normally -held .in--closedi position by 810 means of the springs 31.

Propellers 39 vare secured-ion 4:the -eiids;nf shafts 16, when the machine .isftofbe used.

when provided with my improved.startingr mechanism` two worin wheels are secured on the countersliafts 13. These worin .wheels are iii aliiiementand locatedcloselo each other. so that they mayhothfibeturned hy a- .i worin 49. which is fixed toa'fyertical shaft; 90

50. and is normally in l'the positioii'- shown in Fig. l in a plane tooloiv to engagethc teeth of the .worm wheels,vv A ,shaft 50. is

supported in twofixed hearings tan'dj,

both of which are ixedv tothe enginestructure and insure a4 vertical alinemen't of the shaft. The upper end 'of 'shaft 50 projects hou-ses three smaller gears?) Patented-May '219122'.

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vmeansfo no ng Svaiiddshaftimoi I iglineanscontrollingitlieVop-l erefn :scribed i L-hstarting mechanism for engines comprisinggfan` engine Adriven worm wheel, a I form normally-putof engagement with said wgfm whee'l,agsliaftk 'to which said worm is y -secured,. ;af metenconnected with said shaft, means ormovi-ng the shaft to positionA the worm in mesh with the worm wheel, a f luid reservoir, apipe connecting saidfluid reservoir-with said. motor, and said shaft moving '-:means jcontnolling, the Vflow of fluidto the motor,,substantiallyas described.

j 5- A starting mechanism for engines com- .prisingl anl-engine ldriven worm wheel, a wormeshaft, aworm on said shaft normally iL-outfoffengagementwith;y the worm wheel, a

said motor, stilistantially` ,de-`

fluidmotor:olnsaid'worm shaft, a fluid tank, v ai pipe connectingsald fluid tank and motor,

andi :means constructed to move said worm shaftfand control the flow of liquid through said lpip'efsubstantially as described.

u GsiA startingmechanism-for engines comprising an engine drivenA worm wheel, a worm shaft, awvorm on said shaft normally outV ofA engagement withthe worm wheel, a

apipe connecting said fluid tank and motor, a'lever fulcrumed between its ends, one end adapted to engage the worm and move theworm'tshaft', and the fulcrum of said r'lever "constitutingf aival've in'said pipe, wherebyy tlie"-flo\'v1v 'of 'fluidto the. motor is controlled bythe movement of the lever, substantially asfdescribed; 1', -1 i prising an engine driven worm wheel, a worm'nornia'lly out of engagement with said Wrnr wlie'elfaI shaft to which said worm is secured," a 'motrjconnected with said shaft, rieansV for moving the shaft to position the Wormf inF mesh with the Worm wheel, said motorcomprising a casing, a gear in said casingx'ed to the'worm shaft, smaller gears meshing ,with the larger gear, and said cascasing, a gear in said casing fixed to the worm shaft, smaller gears meshing with the larger gear, and said casing having inlets fluid motor on said worm shaft, a fluid tank,

i7 ,13A startijr'i'gfmechanism for engines com-l ing having inlets and outlets compelling the y and outlets eoinpellingtlie passage between said larger gear and said smaller gears, substantially asdescribed. f A

` 9. starting,mechanism for enginesucomprising y an engine ,driven worin wheel, a worin normally outiof enga gement with said Worm wheel, a shaft to which said worm is secured. a motor connected. with said shaft, means for movingthe shaft toposition the worm in mesh with the worm wheel, a fluid reservoir, a pipe connecting said fluid reservoir with said motor, and rsaid shaft moving means controlling the flow of fluid to the motor7 said motor comprising a casing, a gear insaid casing fixed to the-worm shaft, smaller gears meshing with the larger gear, and said casing 4having inlets'andoutlets compelling the passage of fluid between said larger gear and said smaller gears, substantialli7 as described.

1,0, A starting mechanism for enginesV comprising an engine driven worm wheel, a worm shaft, a worm on said shaft" normally out of engagement with the worm wheel, a fluid motor on said worm shaft, a fluid tank,

. a pipe connecting said fluid tank and motor,

meansI constructed to move said worm shaft and control the flow of liquid through said pipe, said motor comprising a casing, a gear in said casing fixed to the worm shaft, smaller gears meshing with the largergear, and said casing having inlets and outlets compelling the passage of fluid between'said larger gear and said smaller gears, suhstanf, tially as described. I l

'11. A starting mechanism for` engines comprising anv engine driven worm wheel, a Vworm shaft, a worm on said shaft normally out of engagement with the worm wheel, a fluid motor on said worm shaft, a fluid tank, a pipe connecting said fluid tank and motor, 4a lever fulcrumed between its ends, one end adapted to engage the worm and move the worm shaft, and the fulcrum of said lever. constituting a valve in said pipe, whereby the flow of fluid to the motor is cont-rolled by the movement of the lever, said, motor comprising a'casing, a gear in said casing fixed to the Worm shaft, smallerfgeas meshing with the ylarger-gear, and'said casing having inlets and outlets compelling the passage of fluid ,betweenvsaid larger gear,` and c said smallenfgears, substantially as described.

112.!.Thewcombination. with an internal engine,-.,and two parallehsha tts dri ,nlhyzsaid enginQ-fofgearsi on saiddrive ash attsg: countershfts, gears on said`1 count-ershafts meshing Wit-h the first-'mentioned gears,worm Wheels on said countershafts, a worm shaft dispo-sed .between the Worm wheels and mounted to move longitudinally, a worm on said Worm shaft normally out of engagement with the worm wheels, a motor for turning said wormshaft, and means for moving said Worm shaft longitudinally to position the worm in engagement vwith the worm vvheels, substantially as described. j

13. The combination with combustion engine, and tivo parallel shafts driven by said engine, of gears on said drive shafts, countershafts, gears on said countershafts meshing ivith the first-mentioned gears, Worm Wheels on said countershafts, a ivorm shaftl disposed betiveen the worm Wheels and mounted to move longitudinally, a Worm on said Worm shaft normally out of engagement ivith the worm Wheels, a motor for turning said Worm shaft, means for moving said worm shaft longitudinally to position the Worm in engagement With the Worm Wheels, and said shaft moving means controlling the operation of'said motor, substantially as described.

14. The combination with an internal combustion engine, and tivo parallel shafts driven by said engine, of gears on said drive shafts, countershafts, gears on said counterf, 1G. The combination with an shafts meshing with the first-mentioned gears, worm Wheels on said countershafts, a worm shaft disposed between the Worm Wheels and mounted to move longitudinally, a Worm on said Worm shaft normally out of engagement with the Worm wheels, a motor for turning said Worin shaft, parallel rods projecting through said motorcasingand guiding the movement thereof, a cross bar on said rod limiting the movement of said casing, and means for moving said Worm shaft and casing, substantially as described.

15. The combination with aninternal combustion engine, and two parallel shafts driven by said engine, of gears on said drive shafts, countershafts, gears on said cuntershafts meshing with the first-mentioned gears, Worm Wheels on said countershafts, av

Worm shaft disposed between v the 'Worm wheels and mounted to move longitudinally, a Worm on said Worm shaft normally out of engagement ivith the worm Wheels, a motor .for turning said Worm shaft, parallel rods projecting through said motor casing and guiding the movement thereof, a cross bar on said rod limiting the movement of said' casing, a lever constructed to engage said Worm and move it longitudinally to position said Worm in engagement with the Worm wheels. substantially as described.

' internal combustion engine, and two parallel shafts driven by said engine, of gears on said drive shafts, countershafts, gearson said countershafts meshing with the, first-mentioned gears, Worm Wheels on said countershafts, a

an internal worm shaft disposed between the worm Wheels and mounted toy move longitudinally, a Worm 'on said ivorm shaft normally outof engagement with the worm wheels, a motn lfor turning said wormshaft, parallel rods,

projecting through said motor casing and. guiding the movement thereof, a cross bar -on said rod limiting the movement of said casing, a lever constructed to engage said worm and move it longitudinally to position said Worm in engagementwith the Worm Wheels, andlmeans operated bysaid lever for controlling the operation of the motor, substantially as described. A

17. The combination, with an internal combustion engine, and two parallel shafts driven by said engine, of gears on said drive shafts, countershafts, gears on said counter- 'shafts lmeshing withv4 the first-mentioned gears, worm Wheels on said countershafts, a

Worm shaft disposed between `rthe Worm Wheels and mounted to move longitudinally, a Worm on said Worm shaft normally out of engagement with the ivorm Wheels, afluid motor on saidvvorm shaft, fixedbearings for said wormA shaft, fixed rods guiding the movement of said fluid motor and limiting the movement thereof, a fluid tank, a pipe connecting said tank, and means constructed to move said Worm and control the- How of Huid through the pipe, substantially as described. v

18. The combination with an internal combustion engine. and tivo parallel shafts driven by said engine, of gears on said drive shafts, countershafts, gears on said countershafts meshing with the first-mentioned gears, worm Wheels on said countershafts, a ivorm shaft disposed between the Worm Wheels and mounted to move longitudinally, a- Worm on said ivorm shaft normally out of engagement with the Worm Wheels, a fluid motor on said Worm shaft, fixed bearings for said Worm shaft, fixed rods guiding the movement of said fluid motor and limiting the movement thereof, a Afluid tank, afpipe connecting said tank, means constructed to move -said worm and control the flo'sv offiuid through the pipe, a pipe connecting said tank with an engine cylinder, and a valve in said pipe, substantially as described.

In testimony whereof I have signed my name to this specification' in the presence of tivo subscribing Witnesses. 

